Intermittent chaos in switching power supplies due to unintended coupling of spurious signals

Chi Kong Tse, Yufei Zhou, Chung Ming Lau, S. S. Qiu

Research output: Journal article publicationConference articleAcademic researchpeer-review

21 Citations (Scopus)


This paper studies the "intermittent" chaos and subharmonics observed in switching dc/dc converters using a simple circuit model that describes possible unintended coupling of some weak spurious signal to the converter. The study shows that the signal strength and frequency of the intruding signal are vital parameters that affect the type of intermittent behavior and the period of intermittency. Simulations and experimental results are presented.
Original languageEnglish
Pages (from-to)642-647
Number of pages6
JournalPESC Record - IEEE Annual Power Electronics Specialists Conference
Publication statusPublished - 22 Aug 2003
Event2003 IEEE 34th Annual Power Electronics Specialists Conference - Acapulco, NM, United States
Duration: 15 Jun 200319 Jun 2003


  • "Intermittent" chaos
  • Spurious signal coupling
  • Switching converters

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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